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I want to update my specific row with that row previous value, after searching i found some post about this but those solution not working with me. So what is wrong with my query or how can i archive my goal.?

This is my query:

select d.innings_no,
       e.Player_Name,
       (@total := @total + ifnull(sum(b.runs_scored) + sum(c.extra_runs), 0)) as Runs,
       count(b.runs_scored)                                                      Balls
from wicket_taken d
       inner join ball_by_ball a on d.match_id = a.match_id and d.player_out in (a.striker, a.non_striker)
       left join batsman_scored b
                 on (a.match_id, a.over_id, a.ball_id, a.innings_no) = (b.match_id, b.over_id, b.ball_id, b.innings_no)
       left join extra_runs c
                 on (a.match_id, a.over_id, a.ball_id, a.innings_no) = (c.match_id, c.over_id, c.ball_id, c.innings_no)
       inner join Player e on d.player_out = e.Player_Id
       cross join
       (select @total := 0) params
where d.match_id = 335987
group by d.player_out, d.innings_no
order by d.player_out asc;

This is my current output: enter image description here

But i want those to be like this (previous column runs + current column runs):

1 SC Ganguly 61 32

1 RT Ponting 112 (51+61) 41

1 DJ Hussey 172 (112+60) 30

So how can i solve this.?

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  • Do you have MariaDB-10.2+ or MySQL-8.0? Because if you do Window functions provide an easier answer. Can you show your tables with sample data to support your output.
    – danblack
    Commented Feb 27, 2019 at 5:59
  • my db is MySQL-8+, actually in that query i'm joining 5tables, so i'm not sure which table can i show. also those table only for learning purpose.
    – Rhidoy
    Commented Feb 27, 2019 at 6:11
  • Take a look at this very quick intro to window functions
    – danblack
    Commented Feb 27, 2019 at 6:14
  • i'm checking those.
    – Rhidoy
    Commented Feb 27, 2019 at 6:20
  • Using user-defined variables: 1) with multiple tables 2) with group by 3) without proper ordering. Unpredictable result guaranteed. Obtain all another output fields and fields needed for UDV-calculations in subquery, then use UDV calculations in outer query with proper (unique!) records ordering.
    – Akina
    Commented Feb 27, 2019 at 6:34

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